基于Kalman预测算法的卫星信号数字接收终端载波跟踪环路设计

• 作 者: 王光鼎 游福初 房建成 谭逢喜 张传秋
• 机 构: 中国航天科工集团第三研究院三○三研究所,北京航空航天大学,
• 出 处: 战术导弹技术
• 发表日期: 2013年02期
• 关键词: 载波跟踪 Kalman 预测算法 线性预测 高超声速飞行器 捕获带 计算机仿真分析 滤波算法 接收终端 捕获速度

针对高超声速飞行器机动环境下卫星导航、卫星通信数据链等数字接收终端载波同步需要解决的捕获带宽、捕获速度与跟踪精度的矛盾,设计了一种适合高超声速飞行器机动环境下卫星信号数字接收终端的基于Kalman线性预测滤波算法的载波环路跟踪方案,详细推导载波跟踪Kalman线性预测环路滤波算法,并利用计算机仿真分析结果,为FPGA+DSP框架下卫星信号数字接收终端软硬件实现提供了设计依据。

Aiming at the contradiction between acquisition bandwidth, acquisition speed and tracking accuracy which need to be solved for carrier synchronization of digital receiving terminal such as satellite navigation and satellite communication data link in hypersonic aircraft maneuvering environment, a digital satellite receiving terminal suitable for hypersonic aircraft maneuvering environment is designed Based on Kalman linear prediction filter algorithm carrier loop tracking scheme, the carrier tracking Kalman linear prediction loop filter algorithm is derived in detail, and the use of computer simulation analysis of the results for the FPGA + DSP digital satellite receiving terminal hardware and software to provide a design in accordance with.